Robert Nurse

Calcium phosphate




Calcium phosphate is the name given to a family of minerals containing calcium ions (Ca2+) together with orthophosphates (PO43-), metaphosphates or pyrophosphates (P2O74-) and occasionally hydrogen or hydroxide ions. Seventy percent of bone is made up of hydroxylapatite, a calcium phosphate mineral. Tooth enamel is also largely calcium phosphate.

For the production of phosphoric acid and fertilizers, for example in the Odda process. Overuse of certain forms of calcium phosphate can lead to nutrient-containing surface runoff and subsequent adverse effects upon receiving waters such as algal blooms and eutrophication. It is also used in cheese products.

It is used in a variety of dental products for remineralization.


Calcium dihydrogen phosphate
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http://en.wikipedia.org/wiki/Image:Calcium_dihydrogen_phosphate_.png




Calcium hydrogen phosphate
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http://en.wikipedia.org/wiki/Image:Dicalcium_phosphate.png



Tricalcium Phosphate
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http://en.wikipedia.org/wiki/Image:Tricalcium_phosphate.png